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11212010011212 = 2233947236720083
BaseRepresentation
bin1010001100100111111111…
…0111111011101001001100
31110200212011020220010221220
42203021333313323221030
52432144144030324322
635502420513523340
72235020026431303
oct243117767735114
943625136803856
1011212010011212
113632a9439a30a
121310b67573550
136343989a172a
142aa94271d43a
151469b41ca55c
hexa327fdfba4c

11212010011212 has 24 divisors (see below), whose sum is σ = 26167984965696. Its totient is φ = 3736389774288.

The previous prime is 11212010011193. The next prime is 11212010011217. The reversal of 11212010011212 is 21211001021211.

It is a happy number.

It is a super-2 number, since 2×112120100112122 (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11212010011191 and 11212010011200.

It is not an unprimeable number, because it can be changed into a prime (11212010011217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118312678 + ... + 118407405.

It is an arithmetic number, because the mean of its divisors is an integer number (1090332706904).

Almost surely, 211212010011212 is an apocalyptic number.

11212010011212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11212010011212 is an abundant number, since it is smaller than the sum of its proper divisors (14955974954484).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11212010011212 is a wasteful number, since it uses less digits than its factorization.

11212010011212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236724037 (or 236724035 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 11212010011212 its reverse (21211001021211), we get a palindrome (32423011032423).

The spelling of 11212010011212 in words is "eleven trillion, two hundred twelve billion, ten million, eleven thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 3947 7894 11841 15788 23682 47364 236720083 473440166 710160249 946880332 1420320498 2840640996 934334167601 1868668335202 2803002502803 3737336670404 5606005005606 11212010011212